[Bug middle-end/27499] New: ICE with unsigned iteration variable and -fopenmp

[Bug middle-end/27499] New: ICE with unsigned iteration variable and -fopenmp

[Georg dot Baum at post dot rwth-aachen dot de]

Now that the really baad OpenMP bugs seem to be fixed (thanhsk for that!) I
have a hopefully easy one: I get an ICE (svn from today) for the following C
code (and the C++ equivalent as well):

void f()
{
        unsigned int i;
        int dummy;
#pragma omp parallel for
        for (i = 0; i < 5; ++i)
                dummy = i;
}

LANG=C gcc-4.2 -c -fopenmp -o gcc-bug-signed.o gcc-bug-signed.c
gcc-bug-signed.c: In function 'f':
gcc-bug-signed.c:6: warning: iteration variable 'i' is unsigned
gcc-bug-signed.c:6: internal compiler error: in gimplify_omp_for, at
gimplify.c:4753

FYI icc 8.1 flags the unsigned variable as error.


-- 
           Summary: ICE with unsigned iteration variable and -fopenmp
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: Georg dot Baum at post dot rwth-aachen dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27499

[Bug c/27499] ICE with unsigned iteration variable and -fopenmp

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2006-05-09 06:27 -------
4753      gcc_assert (!TYPE_UNSIGNED (TREE_TYPE (decl)));

if (TYPE_UNSIGNED (TREE_TYPE (decl)))
    warning (0, "%Hiteration variable %qE is unsigned", &elocus, decl);

We only warn but then we assert it being false, what a joke.

Anyways confirmed.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|middle-end                  |c
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-05-09 06:27:24
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27499

[Bug c/27499] ICE with unsigned iteration variable and -fopenmp

[jakub at gcc dot gnu dot org]

------- Comment #2 from jakub at gcc dot gnu dot org  2006-05-16 10:12 -------
Subject: Bug 27499

Author: jakub
Date: Tue May 16 10:12:39 2006
New Revision: 113822

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=113822
Log:
        PR c/27499
        * gimplify.c (gimplify_omp_for): Remove assertion that iteration var
        is signed.

        * gcc.dg/gomp/pr27499.c: New test.
        * g++.dg/gomp/pr27499.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/gomp/pr27499.C
    trunk/gcc/testsuite/gcc.dg/gomp/pr27499.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimplify.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27499

[Bug c/27499] ICE with unsigned iteration variable and -fopenmp

[jakub at gcc dot gnu dot org]

------- Comment #3 from jakub at gcc dot gnu dot org  2006-05-16 10:18 -------
Fixed in SVN.


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27499

[Bug c/27499] ICE with unsigned iteration variable and -fopenmp

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27499